transformed clone 中文意思是什麼
transformed clone
解釋
轉化無性系,轉化克隆- transformed : 使. . . 變形
- clone : n. 1. 【生物學】純種細胞,無性系。2. 復製品;(幾乎)一模一樣的人。3. (不動腦筋)機械行事的人;機器人。vt. 把…培養為純種細胞;無性繁殖;〈比喻〉復制。
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Sub - - clone of s, . / hbsag fusion gene : pbuescripts, . / hbsag and ppiczaa were digested separately by xhoi and xbai enzyme, and were linked under t4 dna ligase, ppiczaa s, / hbsag was constructed and transformed to e. coli
Hbsag質粒與ppiczaa載體分別經xhol和xbaln切,再在t4dna連接酶作用下進行連接,獲得工程菌表達型ppiczaas ; hbsag質粒,轉化大腸桿菌t0p10細胞,經xhol和xbal與sacll和xbal酶切電泳,證實s ; 。 -
Then the linked products were transformed into the high competent cell of e. coli dh5a. based on - complementation of the detective - galactosidase, positive recombinant clone were screened from x - gal plate
從引物和基因序列的比對分析結果看, zhyf006序列與上下游引物的配對比例分別為s4 -
In this study, we designed a pair of primers based on the sequence of the upstream and downstream of chicken il - 2 gene. about 600 bp chicken il - 2 cdna fragment was cloned from cona - stimulated chicken splenocytes by reverse transcription - polymerase chain reaction ( rt - pcr ) and was subcloned into puc18 vector. recombinant clone was demonstrated by restriction enzyme digestion and dna sequencing. next, we construct recombinant plasmid pproex ? t - il - 2. the cdna of chicken il - 2 gene was subcloned into bamh i / hind iii sites of vector. the recombinant plasmid pproex ? t - il - 2 was transformed into e. coli dh5a and the bacteria was induced with iptg. it was demonstrated by sds - page and western blot that a 18kda protein which was equal to chicken il - 2 protein in molecular weight was expressed in e. coli dh5a. the expression level was up to 30 % of the total bacterial proteins. the purified protein was used to prepare the antibody against chicken il - 2 protein
經酶切鑒定及dna序列測定,該基因為雞il - 2基因,其序列與sundick等報道的完全一致。在此基礎上,我們把雞il - 2基因亞克隆到大腸桿菌原核表達載體pproex ~ ( tm ) ht中,構建重組表達質粒並進行確證性序列測定,重組質粒測序結果表明將編碼雞il - 2成熟蛋白的基因正確地插入到原核表達載體pproex ~ ( tm ) ht的目的位點。重組質粒轉化受體菌dh5後用iptg於37進行誘導培養, sds - page和westernblot分析顯示,表達的雞il - 2融合蛋白分子量約為18kda ,表達的融合蛋白經薄層掃描發現目的蛋白表達量約占菌體蛋白的30 。 -
Selected one of the 14 strains - s93, s93 dna was digested partially with sau3a i and 2 ~ 3kb fragments were collected and inserted into puc 18, then transformed into dh5 a. filtering the clone with hybridization in situ, a 1 kb frament clone has been cloned
使用sau3ai對基因組dna進行不完全酶切,回收2 3kb片段,與puc18質粒連接轉化大腸桿菌,利用地高辛標記探針,使用菌落原位雜交篩選轉化子;篩選到包含有約1kb外源片段的轉化子。 -
After electrophorised on 1 % agarose gel, the pcr production was purified with agarose gel dna extraction kit. the segment was ligated with vector pmd18 - t and then was tranformed into the competent cell of dh5 a. a construction mstnd - pmd18t was generated by inserting the sequence of 254bp into pmd18 - t vector and selecting the sense clones. positive clone was identified by three ways : endonuclease digestion, pcr and sequencing. the result showed that the cloned sequence coincides with the designed sequence. this construction was digested with nco i and xho i and ligated the pet28a ( + ) vector digested with the same enzymes using dna ligation kit. the production of ligation reaction was transformed into the competent cell of bl21 ( de3 ). after 12 - 16 hours of culture, several colnes appeared on the plate. some positive clones were selected to extract their plasmid. these plasmids were digested by nco i and xho i and indentified by pcr. a contraction, mstnd - pet28a was generated. the result showed that the cloned sequence coincides with the designed sequence
F _ 1長38bp , r _ 1長36bp ,其它片段均40bp長, f _ 1和r _ 1片段兩端分別加上限制性內切酶nco和xho的識別位點序列。用成對單鏈片段進行延伸反應,然後用其他單鏈片段作為引物,進行pcr擴增,用dna快速純化回收試劑盒回收所得254bppcr產物,與pmd18 - t載體連接、轉化dh _ 5 。受體菌感受態細胞,利用藍白斑遺傳學篩選法篩選陽性克隆,提取其質粒,採用nco和xho雙酶切鑒定,獲得了254bp的片段;用pmd18 - t載體上的特異引物rv - m和m13 - 47進行pcr鑒定,獲得300bp的片段。 -
By cheeking the transformed bacterial colonies, we had filtrated the masculine clone successfully. the sequencing result showed that the inserting fragment contained intact coding sequences of dh. pban ( pheromone biosynthesis activating neuropeptide ) and three sgnps ( suboesophageal ganglion neuropeptide ) and the leading frame of it was correct
測序結果表明,重組載體的插入片段中含有dh 、性信息素生物合成激活肽( pheromonebiosynthesisactivatingneuropeptide , pban )及三個食道下神經節肽( suboesophagealganglionneuropeptide , sgnp )的完整的編碼序列,且其閱讀框架( readingframe )完全正確。 -
Main works and their important results are showed as following. firstly, the cdna encoding bullfrog gh is amplified by use of the total rna, extracted from adult bullfrog ' s pituitary, as the template, pi ( 5 ' - cggatcc atg gct tca ggg tta ggc ) and p2 ( 5 ' - cgaattc tta aaa ggt gca gtt gct ) as the primer pair and one particular cdna product, 660bp, was obtained after the rt - pcr - the product was purified by using dna agarose gel extraction method. after the purified cdna and pmd18 - t vector were ligated at 16 over night, the ligation products were transformed into e. coli strain dh5a and then the transformants were screened by clone pcr method
首先,以成體牛蛙的腦垂體總rna為模板,進行rt ? pcr擴增得到約660bp的特異性pcr產物帶,切下瓊脂糖凝膠中的特異產物帶進行cdna膠回收,將cdna與pmd18 ? t載體進行t ? a克隆連接並轉化到dh5 e . coli后,進行菌落pcr 、質粒酶切鑒定,篩選出陽性菌株,測序結果經blast分析,與已報道的牛蛙生長激素基因高度同源,證實此陽性克隆為牛蛙生長激素基因轉化子,命名為pbfgh 。
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